20269972948 has 12 divisors (see below), whose sum is σ = 35484717492. Its totient is φ = 10131482240.

The previous prime is 20269972913. The next prime is 20269972973. The reversal of 20269972948 is 84927996202.

It can be written as a sum of positive squares in 2 ways, for example, as 7636662544 + 12633310404 = 87388^2 + 112398^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20269972892 and 20269972901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863023 + ... + 886198.

It is an arithmetic number, because the mean of its divisors is an integer number (2957059791).

Almost surely, 2^20269972948 is an apocalyptic number.

It is an amenable number.

20269972948 is a deficient number, since it is larger than the sum of its proper divisors (15214744544).

20269972948 is a wasteful number, since it uses less digits than its factorization.

20269972948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752122 (or 1752120 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 20269972948 in words is "twenty billion, two hundred sixty-nine million, nine hundred seventy-two thousand, nine hundred forty-eight".